VTK  9.1.0
vtkPNGReader.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkPNGReader.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
26 #ifndef vtkPNGReader_h
27 #define vtkPNGReader_h
28 
29 #include "vtkIOImageModule.h" // For export macro
30 #include "vtkImageReader2.h"
31 
32 class VTKIOIMAGE_EXPORT vtkPNGReader : public vtkImageReader2
33 {
34 public:
35  static vtkPNGReader* New();
36  vtkTypeMacro(vtkPNGReader, vtkImageReader2);
37  void PrintSelf(ostream& os, vtkIndent indent) override;
38 
42  int CanReadFile(VTK_FILEPATH const char* fname) override;
43 
49  const char* GetFileExtensions() override { return ".png"; }
50 
54  const char* GetDescriptiveName() override { return "PNG"; }
55 
61  void GetTextChunks(const char* key, int beginEndIndex[2]);
65  const char* GetTextKey(int index);
71  const char* GetTextValue(int index);
77 
79 
84  vtkSetMacro(ReadSpacingFromFile, bool);
85  vtkGetMacro(ReadSpacingFromFile, bool);
86  vtkBooleanMacro(ReadSpacingFromFile, bool);
88 protected:
90  ~vtkPNGReader() override;
91 
92  void ExecuteInformation() override;
94  template <class OT>
96  template <class OT>
97  void vtkPNGReaderUpdate2(OT* outPtr, int* outExt, vtkIdType* outInc, long pixSize);
98 
99 private:
100  vtkPNGReader(const vtkPNGReader&) = delete;
101  void operator=(const vtkPNGReader&) = delete;
102 
103  class vtkInternals;
104  vtkInternals* Internals;
105  bool ReadSpacingFromFile;
106 };
107 #endif
general representation of visualization data
Definition: vtkDataObject.h:60
topologically and geometrically regular array of data
Definition: vtkImageData.h:48
Superclass of binary file readers.
a simple class to control print indentation
Definition: vtkIndent.h:34
Store vtkAlgorithm input/output information.
read PNG files
Definition: vtkPNGReader.h:33
const char * GetDescriptiveName() override
Return a descriptive name for the file format that might be useful in a GUI.
Definition: vtkPNGReader.h:54
static vtkPNGReader * New()
const char * GetTextValue(int index)
Returns the text value stored at 'index'.
void ExecuteInformation() override
size_t GetNumberOfTextChunks()
Return the number of text chunks in the PNG file.
const char * GetFileExtensions() override
Get the file extensions for this format.
Definition: vtkPNGReader.h:49
const char * GetTextKey(int index)
Returns the text key stored at 'index'.
void vtkPNGReaderUpdate(vtkImageData *data, OT *outPtr)
void ExecuteDataWithInformation(vtkDataObject *out, vtkInformation *outInfo) override
This is a convenience method that is implemented in many subclasses instead of RequestData.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void vtkPNGReaderUpdate2(OT *outPtr, int *outExt, vtkIdType *outInc, long pixSize)
void GetTextChunks(const char *key, int beginEndIndex[2])
Given a 'key' for the text chunks, fills in 'beginEndIndex' with the begin and end indexes.
~vtkPNGReader() override
int CanReadFile(VTK_FILEPATH const char *fname) override
Is the given file a PNG file?
Set of utilities for OpenTURNS<->VTK conversions.
Definition: vtkOTFilter.h:33
@ key
Definition: vtkX3D.h:263
@ index
Definition: vtkX3D.h:252
@ data
Definition: vtkX3D.h:321
int vtkIdType
Definition: vtkType.h:332
#define VTK_FILEPATH